Quick answers
- Where does Haley C. Mayo see patients?
- Medicare's clinician data lists 7 practice locations, including Saint Louis, MO and Affton, MO. Call before your visit to confirm the address.
- What is Haley C. Mayo's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Haley C. Mayo accept Medicare assignment?
- Yes. Medicare's clinician data says Haley C. Mayo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Haley C. Mayo?
- (314) 961-2255, as listed in official Medicare / NPI Registry data.
- What is Haley C. Mayo's NPI number?
- 1568774446. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Haley C. Mayo is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 2060 Hampton AveSaint Louis, MO 63139 (314) 961‑2255
- 3114 S Grand BlvdSaint Louis, MO 63118 (314) 961‑2255
- 4318 Loughborough AveSaint Louis, MO 63116 (314) 961‑2255
- 4400 Telegraph RdSaint Louis, MO 63129 (314) 961‑2255
- 6900 Chippewa StSaint Louis, MO 63109 (314) 961‑2255
Group practices
Medicare enrollment lists Haley C. Mayo as a member of this group (CMS data updated 2026-10-02).
- Total Access Urgent Care PC126 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568774446 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians